A hotel manager is looking to enhance the initial impressionthat hotel guests have when they check in. Believed to contributeto initial impressions is the time it takes to deliver a guest’sluggage to his or her room after check-in. A random sample of 20deliveries on a particular day were selected from Wing A of thehotel, and a random sample of 20 deliveries were selected in Wing B(i.e., the Excel tab LUGGAGE). (a)Identify which type of test is most appropriate for you to use,justify your answer. (b) Determine whether or not the mean deliverytime differs for the two wings of the hotel (use α = .05). (c) Iffaster luggage delivery time is positively related to guests’initial impression, which wing(s) should receive the highestimpression ratings?
| Wing A | Wing B |
| 10.70 | 7.20 |
| 9.89 | 9.68 |
| 11.83 | 9.29 |
| 9.23 | 8.95 |
| 8.56 | 6.61 |
| 9.21 | 8.53 |
| 9.48 | 8.92 |
| 10.03 | 7.95 |
| 12.67 | 9.10 |
| 8.96 | 8.70 |
| 9.51 | 11.13 |
| 10.85 | 11.58 |
| 10.57 | 12.01 |
| 11.06 | 5.28 |
| 8.91 | 9.23 |
| 11.79 | 11.25 |
| 10.59 | 8.44 |
| 9.13 | 6.57 |
| 11.37 | 10.61 |
| 9.91 | 6.77 |
| |
